As inverter-based resources (IBRs)—including solar PV, wind farms, and battery energy storage systems (BESS)—and synchronous generators play an ever-larger role on the Bulk Power System (BPS), maintaining stability during voltage and frequency excursions is critical.

PRC-029-1 establishes mandatory ride-through performance for IBRs, ensuring they stay connected and support voltage recovery during dips and swells.
PRC-024-4 refines protection‐relay settings for synchronous machines (Type 1/2 wind, condensers, gas turbines), enhancing fault-clearing selectivity and coordination.

Meeting these standards goes beyond a regulatory checkbox—it prevents large-scale tripping events, upholds grid reliability, and keeps your generation assets compliant, resilient, and revenue-productive.

Requirement	NERC Standard	Compliance Deadline	Keentel Engineering Support
Design-Based Elements (R1–R3)	PRC-029-1	12 months after adoption	Configure IBR ride-through settings and validate against mandatory curves
Operation-Based Elements (R1–R3)	PRC-029-1	Upon deployment of PRC-028-1 monitoring	Analyze disturbance event data and produce compliance reports
Frequency Performance (R4)	PRC-029-1	January 1, 2027 (or adoption date)	Perform event analysis and develop corrective action plans
Legacy Equipment Exemptions	PRC-029-1	Case-by-case	Prepare exemption justifications, supporting documentation and notifications
Voltage/Frequency Protection	PRC-024-4	12 months after adoption	Review, tune and validate protection relay settings for synchronous assets

In 1995, Sonny Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don't build legacies — action does.

For three decades, he has worked the power industry from every side of the table: 16 years as a utility engineer at Exelon/Commonwealth Edison; generation leadership across hydroelectric, industrial steam turbine, and a 9 GW renewable fleet; NERC Regional Entity Senior Compliance Engineer and Audit Team Lead, auditing some of the nation's largest utilities; and testing and commissioning lead on equipment up to 765 kV — the very top of the North American grid.Utility. Generator. Regulator. Consultant. Few engineers have seen all four seats. Fewer still have sat in them.

His experience spans nuclear, hydro, conventional generation, renewables, oil and gas, mining — and today's data centers, where he is authoring a three-book series on data center design. He is a Licensed Professional Engineer in six states and a Licensed Electrical Contractor in Florida (Unlimited EC) — he doesn't just design the work; he's qualified to stand behind its execution.Today, as Founder and CEO of Keentel Engineering, Sonny leads a nationwide team of engineers delivering substation design, power system studies, NERC compliance, and commissioning — done right, coast to coast.Three decades. Every side of the table. One standard: accountable engineering.

In 1995, Sonny Patel earned his Electrical Engineering degree from the University of Illinois. But degrees don't build legacies — action does.

Utility. Generator. Regulator. Consultant. Few engineers have seen all four seats. Fewer still have sat in them.

Today, as Founder and CEO of Keentel Engineering, Sonny leads a nationwide team of engineers delivering substation design, power system studies, NERC compliance, and commissioning — done right, coast to coast.Three decades. Every side of the table. One standard: accountable engineering.